Electrophotographic photoreceptor
First Claim
1. An electrophotographic photoreceptor in which an undercoating layer and a photosensitive layer are provided on a conductive substrate,wherein the undercoating layer contains an electron transporting pigment and a reactive organometallic compound, and a surface layer of the electrophotographic photoreceptor contains at least one resin selected from electric charge transporting polycarbonate and electric charge transporting polyester.
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Abstract
In an electrophotographic photoreceptor in which an undercoating layer and a photosensitive layer are provided on a conductive substrate, the undercoating layer preferably contains at least one electron transporting pigment and a reactive organometallic compound, the electron transporting pigment being selected from a group consisting of an electron transporting polycyclic quinone pigment such as brominated anthoanthrone, an electron transporting perylene pigment, an electron transporting phthalocyanine pigment, and an electron transporting azo pigment, and the surface of the electrophotographic photoreceptor contains at least one resin selected from electric charge transporting polycarbonate and electric charge transporting polyester. As a result, it is possible to provide an electrophotographic organic photoreceptor having stabilized performance and durability, which is not affected by environmental changes even when used for a long period of time and in which deterioration of the performance and electric characteristics thereof is prevented.
21 Citations
20 Claims
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1. An electrophotographic photoreceptor in which an undercoating layer and a photosensitive layer are provided on a conductive substrate,
wherein the undercoating layer contains an electron transporting pigment and a reactive organometallic compound, and a surface layer of the electrophotographic photoreceptor contains at least one resin selected from electric charge transporting polycarbonate and electric charge transporting polyester.
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15. An electrophotographic photoreceptor in which an undercoating layer and a photosensitive layer are provided on a conductive substrate,
wherein the undercoating layer contains an electron transporting pigment and a reactive organometallic compound, the electron transporting pigment being selected from the group consisting of an electron transporting polycyclic quinone pigment, an electron transporting perylene pigment, an electron transporting phthalocyanine pigment, and an electron transporting azo pigment, and wherein a surface layer of the electrophotographic photoreceptor contains at least one resin selected from the group consisting of electric charge transporting polycarbonate and electric charge transporting polyester, the electrical charge transporting polycarbonate and electrical charge transporting polyester being represented by any of the following general formulae (II), (III) and (IV): - ##STR113## wherein A is the structure represented by the following general formula (I-1) or (I-2);
B represents --O--(Y2 O)m'"'"' or --Z2 --;
Y and Y2 represent divalent hydrocarbon groups;
Z and Z2 represent divalent hydrocarbon groups;
m, m2 and m'"'"' each represents an integer of 1 to 5;
n represents an integer selected from 0 and 1; and
p, p2, p3 each represents an integer of 5 to 5000;
##STR114## wherein R1 to R4 each independently is a hydrogen atom, an alkyl group, an alkoxy group, a substituted amino group, a halogen atom, or a substituted or an unsubstituted aryl group;
X is a substituted or an unsubstituted arylene group;
k and l each independently represents an integer selected from 0 and 1; and
T is an optionally branched, divalent hydrocarbon group having 1 to 10 carbon atoms. - View Dependent Claims (16, 17, 18, 19, 20)
- ##STR113## wherein A is the structure represented by the following general formula (I-1) or (I-2);
Specification